Mechanical pencil



FIG. 1 is a front elevational view of a mechanical pencil showing my new design;

FIG. 2 is a right side elevational view thereof, the left side being the same in appearance as the right side;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a top plan view thereof;

FIG. 5 is a bottom plan view thereof;

FIG. 6 is a front elevational view of a cap of the mechanical pencil;

FIG. 7 is a right side elevational view of the cap, the left side being the same in appearance as the right side;

FIG. 8 is a rear elevational view of the cap;

FIG. 9 is a top plan view of the cap; and,

FIG. 10 is a bottom plan view of the cap. 

The ornamental design for a mechanical pencil, as shown and described. 